Merge pull request #5 from thomaseichinger/build-fixes

iot_lab-M3: fix warnings
fixed coding conventions with astyle
changed DOS line endings to unix
append CFLAGS instead of overwriting
Merge pull request #6 from OlegHahm/cflags_append

append CFLAGS instead of overwriting
Merge pull request #4 from OlegHahm/coding_conventions

fixed coding conventions for
fixed header includes for at86rf231_driver.c
Merge pull request #9 from OlegHahm/iot-lab_M3-include_cleanup

iot-lab_M3: fixed header includes for at86rf231_driver.c
Merge pull request #7 from thomaseichinger/makefile_ad

iot-lab_M3: stm32f4discovery: make use of $(AD) in Makefiles
added gitignore
added agileofx board, Cortex-M3

changed make term to miniterm.py with 115200 baud on ttyUSB2
clock is driven by pll on a 16MHz quartz
using vtimer instead of busywait in at86rf231 driver
import of @AlaeddineWeslati's agilefox port with fixes addressing @OlegHahm's comments in https://github.com/RIOT-OS/thirdparty_boards/pull/2
addressing comments by @OlegHahm